Answers
Related Questions
It normally takes Julius 2 hours to mow the yard, but because he is in a hurry he asks his son, Marcos, to help him. If just his son was doing the yard work it would take him 3 hours. How long will it take if both are working together? Use the formula 1/T_1 +1/T_2 =1/T_both where T_1 is the time required for Julius to complete the job alone, T_2 is the time required for Marcos to complete the job alone, and T_both is the time required to complete the job when they both work together. Answer as a decimal, rounded to one decimal place.
Answers
Answer: 1.2 hours
Step-by-step explanation:
Given: : Time taken by Julius to complete the job alone: [tex]T_1=2\text{ hours}[/tex]
Time taken by Marcos to complete the job alone : [tex]T_2=3\text{ hours}[/tex]
Let the time taken by both to complete the job together = T
[tex]\dfrac{1}{T}=\dfrac{1}{T_1}+\dfrac{1}{T_2}[/tex]
[tex]\Rightarrow\ \dfrac{1}{T}=\dfrac{1}{2}+\dfrac13\\\\\Rightarrow\ \dfrac{1}{T}=\dfrac{3+2}{2\times3}\\\\\Rightarrow\ \dfrac{1}{T}=\dfrac{5}{6}\\\\\Rightarrow\ T=\dfrac{6}{5}=1.2[/tex]
Hence, it will take 1.2 hours to complete the job by working together.
What’s 6e+3e-7e simplified
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Answer:
2e
Step-by-step explanation:
6e + 3e - 7e
= 9e - 7e
= 2e
(18 points) What is the approximate area of the circle shown below?
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Answer:
A
Step-by-step explanation:
because if you put in the radius of 3.7 you get 43.01 and if you round that up you get 43 which is A
slope = -5 and goes thorough point (0, 2)
Answers
Answer:
[tex]y=-5x+2[/tex]
Step-by-step explanation:
[tex]y-y_{1} =m(x-x_{1} )\\y-2=-5(x)\\y-2=-5x\\y=-5x+2[/tex]
can someone help me on this plz
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so, they wound up with a loss of 3 yards
or, 3(-4)+9 = -3
for the sub, you want
-125 + 3(-50) = -125-150 = -275
Your setup yields -125(-150) = 18750 ft in the air!
220-4(35)
or, 220+4(-35)
Your final answer is correct, though, which shows that you not only don't know how to set up the expression, you do not know how to evaluate it once written!
You have an extra minus sign.
arwrerhrrwgewgewgrwqegwewes
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help it’s confusing
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Answer:
The independent variable
Step-by-step explanation:
b
Step-by-step explanation:
the amount that he gets paid for every lawn does not change only the amout for every hour
Is the function f(x) = (x+2)/2
A. Even
B. Odd
C. Neither
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Answer:
c
Step-by-step explanation:
inverse function of adding 12
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Answer:
-12
Step-by-step explanation:
Write each set in the indicated form. If you need to use "" to indicate a pattern, make sure to list at least four elements of the set. As you answer below, remember that the natural numbers are just the counting numbers. This means that is not a natural number, and negative numbers are not natural numbers either.
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Complete question is;
Write each set in the indicated form.
If you need to use "..." to indicate a pattern, make sure to list at least four elements of the set.
As you answer below, remember that the natural numbers are just the counting numbers. This means that is not a natural number, and negative numbers are not natural numbers either.
(a) Roster form: {6,8,10,12,...}
Descriptive form:
(b) Descriptive form: The set of natural numbers greater than or equal to 3 and less than or equal to 6.
Roster form:
Answer:
A) Descriptive form: A set of even natural numbers that are greater than or equal to 6.
B) Roster form: {3, 4, 5, 6}
Step-by-step explanation:
A) We are given that the roster form is;
{6,8,10,12,...}
Now, the descriptive form is just a statement that describes the given roster form.
Now, we can see they are all even natural numbers and the least is 6 while after 12,we can see that the set continues.
Thus;
Descriptive form: A set of even natural numbers that are greater than or equal to 6.
B) We are given that the descriptive form is the set of natural numbers greater than or equal to 3 and less than or equal to 6.
This means the least number in the set is 3 while the highest number is 6.
Thus,the roster form is;
Roster form: {3, 4, 5, 6}
simplify the expression
ab – 2ac + cb
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Answer:2
Step-by-step explanation:
How many chemical changes occurred in this scenario? one two three four
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Answer:
Only one :p
Step-by-step explanation:
Answer:
one
Step-by-step explanation
When we put toast in the toaster he didn't do anything but heat up the toast, so the property and identity of this piece of toast hasn't changed at all. When we put jam and peanut butter on it all it did was add flavor to it still didn't change the identity. But when we cut the apple in to a lot of slices the property of the apple has changed and the weight is different and the chemical property isn't the same. ( it is totally different)
write each fraction in simplest form
Answers
your answer would be 1/3
Answer:
1/3 or -1/3
Step-by-step explanation:
When dividing or multiplying both sides of an inequality by a negative number, you?
Answers
Answer:
Flip the sign.
Step-by-step explanation:
For example if it was -2<3 youd flip the sign when you get your answer. So it would be -2>3 except itd be your answer. I just made this problem up but flip the sign!
X(3, 4); scale factor = 7
Answers
Answer:
(21, 28)
Step-by-step explanation:
Multiply coordinates by 7.
Your welcome can I get a thanks
If each movie takes 1 2/5 hours to download,and you download for 5 1/4 hours,how many movies did you download
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Answer:
Step-by-step explanation:
3
g(x) = -3x + 1
solve for x (which is 22)
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Answer:
-65
Step-by-step explanation:
Answer:
-65
Step-by-step explanation:
-3(22) + 1
-65
PLEASE HELP. EASY POINTS.
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Answer:
2x^2+11x+12
Step-by-step explanation:
solve using FOIL
x + 4
_________ ________
2x | 2x² | 8x |
__________________
3 | 3x | 12 |
-----------------------------------
(x + 4) (2x + 3) = 2x² + 11x + 12
A salt mixture has 8 parts water and 2 parts salt. Suppose one part of each is added. What is the new ratio of salt
to water?
2to 9
3to 8
3 to 9
9 to 3 I will giv brainliest
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Answer:
3 to 9
Step-by-step explanation:
1. You make a compound word, such as houseboat, by joining two words together. Why do you think -4 < x < 7 is called a compound inequality?
2. The intersection of two roads is the place where the roads cross. How would you define the intersection of two groups of objects?
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Answer:
because it has two parts
Step-by-step explanation:
thats what the first one is
68 is the product of h and 4
Answers
Answer:
h = 17
Step-by-step explanation:
68 / 4 = 17
Product = multiplication but since we didn't have h we divided
Brainiest would be noice!
High Hopes^^
Barry-
Answer:
I think you are trying to find h if so h=17
all you have to do is divide 68 and 4
PLZ HELP! The equation is 7d+3n=85.
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Answer:
Step-by-step explanation:
[tex]7d + 3n = 85 \\ 7d = 85 - 3n\\d = \frac{85}{7} - \frac{3}{7}x\\\\[/tex]
The slope of the equation is -3/7 and the y-intercept is 85/7
Jimmy has collected 100 aluminum cans to recycle. He plans to
collect an additional 25 cans each week. Write an equation for the total
number of cans, c, after w weeks. If jimmy collected cans for 5 weeks, how
many cans did he collect?
Equation:
Answer:
Answers
Answer:
Jimmy recicled a total 125 cans in 5 weeks.
Step-by-step explanation:
25✖️5= 125
-Have a nice day!
What is the common denominator?
3 4/9 and 2 5/6
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A 10 ounce can of corn cost 1.88 cent what is the unit rate
Answers
Answer:
5.319149 oz per dollar
Step-by-step explanation:
This is a fraction equal to
10 oz ÷ 1.88 dollars
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 1.88
10 oz ÷ 1.88
1.88 dollars ÷ 1.88
=
5.319149 oz
1 dollar
=
5.319149 oz
dollar
= 5.319149 oz per dollar
I looked up a unit rate calculator and this is what I got because honestly i forgot how to do this but I hope it helps.
Solve: -3x + 8 = x + 28
Answers
Answer:
x = -5
I hope this helps!
Answer:
-5
Step-by-step explanation:
I really hope this helps
Please help!!!
Geometry
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Answer:
MQ= 4 PQ=8
Step-by-step explanation:
Since PM and PQ are congruent, we know that MQ is 4 also. We can just double 4, and know that PQ is 8.
A tennis ball is tossed into the air. The height, h(t), in feet, of the tennis ball is a function of time, t, in seconds, as shown in the table below. What is the average rate of change of h on the interval 1 < t < 2.5?
0 0
0.5 20
1 32
1.5 36
2 32
2.5 20
3 0
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can someone help me find the area please?
Answers
Answer:
100 in ^2
Step-by-step explanation:
The area of a trapezoid is given by
A = 1/2 ( b1+ b2) *h where b1 and b2 are the lengths of the bases and h is the height
A = 1/2 ( 16+9) * 8
= 1/2 ( 25) *8
= 100 in ^2
1/2*(9+16)*8=100
PLEASE I REALLY NEED HELP
Answers
Answer:
80 students
Step-by-step explanation:
The line in the middle of the box is the 50% line ( the median, which is 50% above and 50% below)
Since it is at 48, there are 50% above 48 points
3/4 of the students had less than 70 marks
3/4 s = 120
s = 4/3 * 120
The number of students = 160
We need 50 % of the students
50% of 160
.5 * 160 = 80